21491844 (number)

21491844 is an even 8-digits composite number following 21491843 and preceding 21491845. In scientific notation, it is written as 2.1491844 × 10^7. The sum of its digits is 33. It has a total of 6 prime factors and 48 positive divisors. There are 6228640 positive integers (up to 21491844) that are relatively prime to 21491844.

Interesting facts

Basic properties

Name

Name twenty-one million four hundred ninety-one thousand eight hundred forty-four

Notation

Scientific notation 2.1491844 × 10^7
Engineering notation 2.1491844 × 10^6

Prime Factorization of 21491844

Prime Factorization 2 × 2 × 3 × 11 × 23 × 7079

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 6
Total number of prime factors
rad Radical 10745922
Product of the distinct prime numbers

The prime factorization of 21491844 is 2 × 2 × 3 × 11 × 23 × 7079. Since it has a total of 6 prime factors.

Most popular turbo-numbers

Basic calculations (n = 21491844)

Multiplication

n×y
n×2 42983688
n×3 64475532
n×4 85967376
n×5 107459220

Division

n÷y
n÷2 10745922
n÷3 7163948
n÷3 5372961
n÷5 4298368.8

Exponentiation

ny
n2 461899358520336
n3 9.9270689570191E+21
n4 2.133510174015E+29
n5 4.5853067832343E+36

Nth Root

y√n
2√n 4635.929680226
3√n 278.02972268165
4√n 68.087661732695
5√n 29.272157681108

Divisors of 21491844

48 divisors

τ Total Divisors 48
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21491843
Sum of the proper positive divisors of n
A Arithmetic Mean 0.020833333333333
Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n))
G Geometric Mean 1
Returns the nth root of the product of n divisors
H Harmonic Mean 48
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21491844 can be divided by 48 positive divisors. The sum of these divisors (counting 21491844) is 1, the average is 0.020833333333333.

Base conversion 21491844

Base System Value
2 Binary 1010001111111000010000100
3 Ternary 1111102220021020
4 Quaternary 1101333002010
5 Quinary 21000214334
6 Senary 2044351140
8 Octal 121770204
10 Decimal 21491844
12 Duodecimal 72454b0
16 Hexadecimal 147f084
20 Vigesimal 6e69c4
36 Base36 csn7o

Cryptographic Hash Functions

md5 cc8324ce6e4c175e6528fac8a5998f0b
sha1 a0f93c7cf437eed8eb7109455375644d7eba4508
sha256 1991252fe01f013d3fe9d40161f774135cc4473b8e5a83e14c7fd88838c2a298
sha512 0f894dcdb7f1fb07a0f80c4790190b14278cb3ecb37e033fb75631aeaf537490faef781ce5c8739f27ad46017bbcf3f6ff6e24499b121991b51c5ddfabf0a57a
ripemd-160 10f37afa4734657bea63dddd5a08d039f1f161e5

21491844 as geometric shapes

Circle

Radius = n
Diameter 42983688
Circumference 135037238.445
Area 1.4510996314253E+15

Sphere

Radius = n
Volume 4.1582409209401E+22
Surface area 5.8043985257013E+15
Circumference 135037238.445

Square

Length = n
Perimeter 85967376
Area 461899358520336
Diagonal 30394057.265207

Cube

Length = n
Surface area 2771396151122016
Volume 9.9270689570191E+21
Space diagonal 37224965.756344

Equilateral Triangle

Length = n
Perimeter 64475532
Area 2.0000828923517E+14
Altitude 18612482.878172

Triangular Pyramid

Length = n
Surface area 2.0000828923517E+14
Volume 1.1699162961358E+21
Height 10131352.421736